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CVE-2026-61819— pg_partman privilege escalation via SQL injection in when using pg_jobmon and encountering exception

Quick assessment

Affected
pgpartman pg_partman
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

pg_partman 是一个用于管理按时间或 ID 划分的分区表的 PostgreSQL 扩展。在 5.5.0 版本之前，如果安装了 pg_jobmon 并且 为 ，pg_partman 中多个函数的异常处理逻辑会将 参数原样嵌入到一个 SQL 字符串字面量中，用于调用 。攻击者若拥有 权限，可以创建一个包含单引号的父表名，从而终止该字面量并注入 SQL 语句；当触发受影响的异常处理路径时，注入的 SQL 就会被执行。如果 （pg_partman 后台工作进程）到达该代码路径，注入的 SQL 将以 的特权执行，而该

CVSS 8.5 · High

Affected Version Matrix 1

VendorProduct Version RangeStatus
pgpartman pg_partman < 5.5.0 affected
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I. Basic Information for CVE-2026-61819

Vulnerability Information
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Vulnerability Title
pg_partman privilege escalation via SQL injection in when using pg_jobmon and encountering exception
Source: CVE Program / CVE List V5
Vulnerability Description
pg_partman is a PostgreSQL extension that manages partitioned tables by time or ID. Prior to 5.5.0, when pg_jobmon is installed and part_config.jobmon is true, exception handlers in multiple pg_partman functions place p_parent_table verbatim inside a SQL string literal used to call pg_jobmon.add_job(). A partman_user can create a parent-table name containing a single quote that terminates the literal and injects SQL when an affected exception path runs. If pg_partman_bgw reaches that path, the injected SQL executes with pg_partman_bgw.role privileges, which default to PostgreSQL superuser, permitting database-wide compromise and operating-system command execution as the PostgreSQL service account. The persistent part_config row can trigger the escalation again on later maintenance ticks. This issue is fixed in version 5.5.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
pgpartman pg_partman < 5.5.0 -

II. Public POCs for CVE-2026-61819

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III. Intelligence Information for CVE-2026-61819

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Other References for CVE-2026-61819 (2)

Same Patch Batch · pgpartman · 2026-09-18 · 7 CVEs total

CVE-2026-61781 9.9 CRITICAL pg_partman has privilege escalation through SQL injection in create_partition_time()
CVE-2026-61820 8.5 HIGH pg_partman privilege escalation via SQL injection when inheriting template properties
CVE-2026-61817 8.5 HIGH pg_partman privilege escalation via SQL injection in several functions via time decoder
CVE-2026-61818 8.5 HIGH pg_partman SQL injection in undo partition time encoder
CVE-2026-61821 8.5 HIGH pg_partman authorization bypass to move child tables between schemas during retention
CVE-2026-61822 6.5 MEDIUM pg_partman disable maintenance for all partition sets

IV. Related Vulnerabilities

Same product: pg_partman
Same vendor: pgpartman
Same weakness: CWE-89

V. Comments for CVE-2026-61819

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